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Product Specifications:
| Item | Air Pressure Switch |
| Contact Form | SPDT |
| Contact Type | SPDT |
| Display | No |
| Electrical Connection | Screw Terminal |
| Electrical Rating | None |
| Gross Weight | 7.905 lbs. |
| Housing Material | Steel |
| Housing Type | NEMA-4 Enclosure |
| Input Voltage | 277V AC |
| Max. Operating Temp. | 180°F |
| Max. Pressure | 0.5 psi |
| Min. Operating Temp. | -40°F |
| Mounting Orientation | Vertical |
| Nema Rating | NEMA 4 |
| Overall Depth | 3 5/8" |
| Overall Height | 9 1/2" |
| Overall Width | 6" |
| Pressure | 0 in. wc to 12 in. wc |
| Pressure Set Point | 0.05 in. wc to 12 in. wc |
| Pressure Setpoint Type | Adjustable |
| Pressure Type | Negative, Positive, Differential |
| Product Type | Switch |
| Reset Type | Automatic Reset |
| Sample Line Connection | 1/4" NPT |
| Sample Line Connector Type | NPT |
| Sensor Style | Air Differential Switch |
| Switching Differential | 0.02 in. wc to 0.8 in. wc |
| Temp. | -40°F to +180°F |
| Type Of Set Point | Adjustable |
Shipping Info:
| Ship weight (kg) | 2.71 |
| Ship height (cm) | 25.4 |
| Ship length (cm) | 25.4 |
| Ship width (cm) | 25.4 |
| Country of Origin | US |
Product Variants
| Product | Model | Sample Line Connector Type | Pressure Set Point | Overall Height | Sample Line Connection | Overall Width | Pressure Setpoint Type | Input Voltage | Housing Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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DFS301112 | Barb | 0.03 in. wc | 6 1/8" | 1/4" Barb, 1/8" Barb | 3 1/4" | Fixed | 115-277V AC | Open Mounted | €79.31 | |
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AFS398112 | Barb | 0.03 in. wc to 2 in. wc | 6 1/8" | 1/4" Barb, 1/8" Barb | 3 1/4" | Adjustable | 277V AC | Conduit Box | €80.32 | |
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AFS222137 | Integral Compression | 0.05 in. wc to 12 in. wc | 6 1/8" | 1/4" Integral Compression | 3 1/4" | Adjustable | 24V AC | Conduit Box | €179.71 | |
![]() |
AFS405112 | Barb | 0.03 in. wc to 12 in. wc | 6 1/8" | 1/4" Barb, 1/8" Barb | 3 1/4" | Adjustable | 115-277V AC | Conduit Box | €78.93 | |
![]() |
AFS298112148 | Barb | 0.05 in. wc to 12 in. wc | 6 1/8" | 1/4" Barb | 3 1/4" | Adjustable | 277V AC | Open Mounted | €88.61 |
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Contact us
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CLEVELAND CONTROLS AFS9511 Air Pressure Switch, Auto Reset, 0.05 Inch wc-12 Inch wc, NEMA-4 Enclosure, 277V AC
€1,658.60 /unit




